﻿// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// DEALINGS IN THE SOFTWARE.

using System;
using System.Collections.Generic;
using System.Drawing;

namespace ICSharpCode.SharpDevelop.Widgets.Resources
{
	/// <summary>
	/// Manages the bitmap resources used by the widgets library.
	/// These resources are kept outside of the SharpDevelop core
	/// so that this library can be used independently.
	/// </summary>
	public static class BitmapResources
	{
		static readonly Dictionary<string, Bitmap> bitmapCache = new Dictionary<string, Bitmap>();
		
		/// <summary>
		/// Gets a bitmap from the embedded bitmap resources.
		/// </summary>
		/// <param name="name">The name of the bitmap to get.</param>
		/// <returns>The Bitmap.</returns>
		public static Bitmap GetBitmap(string name)
		{
			lock(bitmapCache) {
				Bitmap bmp;
				
				if (bitmapCache.TryGetValue(name, out bmp)) {
					return bmp;
				}
				
				bmp = new Bitmap(typeof(BitmapResources).Assembly.GetManifestResourceStream(typeof(BitmapResources), name));
				bitmapCache[name] = bmp;
				return bmp;
			}
		}
	}
}
